package com.atguigu.gulimall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.constant.ProductConstant;
import com.atguigu.common.to.SkuHasStockVo;
import com.atguigu.common.to.SkuReductionTo;
import com.atguigu.common.to.SpuBoundTo;
import com.atguigu.common.to.es.SkuEsModel;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.product.entity.*;
import com.atguigu.gulimall.product.feign.CouponFeignService;
import com.atguigu.gulimall.product.feign.SearchFeignService;
import com.atguigu.gulimall.product.feign.WareFeignService;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.*;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {
@Autowired
    SpuInfoDescService spuInfoDescService ;
@Autowired
    SpuImagesService imagesService ;
@Autowired
    AttrService attrService ;
@Autowired
    ProductAttrValueService attrValueService ;
@Autowired
SkuImagesService skuImagesService ;
@Autowired
SkuSaleAttrValueService skuSaleAttrValueService ;
@Autowired
SkuInfoService skuInfoService ;
@Autowired
BrandService brandService ;
@Autowired
    SearchFeignService searchFeignService ;
@Autowired
WareFeignService wareFeignService ;
@Autowired
CategoryService categoryService ;
@Autowired
    CouponFeignService couponFeignService ;
    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    //TODO 高级部分完善
    //@GlobalTransactional
@Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
    SpuInfoEntity infoEntity = new SpuInfoEntity();
    BeanUtils.copyProperties(vo,infoEntity);
    System.err.println(this.getClass().getName()+vo);
    infoEntity.setCreateTime(new Date());
    infoEntity.setUpdateTime(new Date());
    this.saveBaseSpuInfo(infoEntity);

    List<String> decript =  vo.getDecript() ;
    SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
    descEntity.setSpuId(infoEntity.getId());
    descEntity.setDecript(String.join(",",decript));
    spuInfoDescService.saveSpuInfoDesc(descEntity);


    List<String> images = vo.getImages() ;
    imagesService.saveImages(infoEntity.getId(),images) ;

    List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
    List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
        ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
        valueEntity.setAttrId(attr.getAttrId());
        AttrEntity attrEntity = attrService.getById(attr.getAttrId());
        valueEntity.setAttrName(attrEntity.getAttrName());
        valueEntity.setAttrValue(attr.getAttrValues());
        valueEntity.setQuickShow(attr.getShowDesc());
        valueEntity.setSpuId(infoEntity.getId());
        return valueEntity;
    }).collect(Collectors.toList());
    attrValueService.saveProductAttr(collect) ;

    Bounds bounds = vo.getBounds();
    SpuBoundTo spuBoundTo = new SpuBoundTo();
    BeanUtils.copyProperties(bounds,spuBoundTo);
    spuBoundTo.setSpuId(infoEntity.getId());
    R r1 = couponFeignService.saveSpuBounds(spuBoundTo);
    if(r1.getCode() != 0){
        log.error("远程保存spu积分信息失败");
    }

    List<Skus> skus = vo.getSkus() ;
        if(skus!=null && skus.size()>0){
            skus.forEach(item->{
                String defaultImg = "";
                for (Images image : item.getImages()) {
                    if(image.getDefaultImg() == 1){
                        defaultImg = image.getImgUrl() ;
                    }
                }


                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,skuInfoEntity);
                skuInfoEntity.setBrandId(infoEntity.getBrandId());
                skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0l);
                skuInfoEntity.setSpuId(infoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                skuInfoService.saveSkuInfo(skuInfoEntity) ;

                Long skuId = skuInfoEntity.getSkuId();

                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity->{
                    //返回true需要保存，返回false过滤掉
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());

                skuImagesService.saveBatch(imagesEntities) ;
                //TODO 没有图片信息无需保存
                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, attrValueEntity);
                    attrValueEntity.setSkuId(skuId);
                    return attrValueEntity;
                }).collect(Collectors.toList());

                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities) ;


//                优惠满减信息
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item,skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if(skuReductionTo.getFullCount() >0 || skuReductionTo.getFullPrice().compareTo(BigDecimal.ZERO)==1){
                    R r = couponFeignService.saveSkuReduction(skuReductionTo);
                    if(r.getCode() != 0){
                        log.error("远程保存sku优惠信息失败");
                    }
                }
            });
        }
}

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity spuInfoEntity) {
        this.baseMapper.insert(spuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> queryWrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            queryWrapper.and((w)->{
                w.eq("id",key).or().like("spu_name",key);
            });
        }
        String status = (String) params.get("status");
        if(!StringUtils.isEmpty(status)){
            queryWrapper.eq("publish_status",status);
        }
        String brandId = (String) params.get("brandId");
        if(!StringUtils.isEmpty(brandId)&& !"0".equalsIgnoreCase(brandId)){
            queryWrapper.eq("brand_id",brandId);
        }
        String catelogId = (String) params.get("catelogId");
        if(!StringUtils.isEmpty(catelogId)&& !"0".equalsIgnoreCase(catelogId)){
            queryWrapper.eq("catalog_id",catelogId);
        }
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),queryWrapper

        );

        return new PageUtils(page);
    }

    @Override
    public void up(Long spuId) {
//        查询出当前spuid对应的所有sku信息，品牌的名字
        List<SkuInfoEntity> skus = skuInfoService.getSkuBySpuId(spuId);
        List<Long> skuIdList = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());
        //TODO 查询当前sku的所有可以用来被检索的规格属性
        List<ProductAttrValueEntity> baseAttr = attrValueService.baseAttrListforspu(spuId);
        List<Long> attrIds = baseAttr.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());
        List<Long> searchAttrIds = attrService.selectSearchAttrIds(attrIds);

        Set<Long> idSet = new HashSet<>(searchAttrIds);


        List<SkuEsModel.Attrs> attrsList = baseAttr.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attrs attrs1 = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(item, attrs1);
            return attrs1;
        }).collect(Collectors.toList());
//TODO 发送远程调用，库存系统查询是否有库存
        Map<Long, Boolean> stockMap = null ;
        try{
            R skuHasStock = wareFeignService.getSkuHasStock(skuIdList);
            TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>() {};
            stockMap = skuHasStock.getData(typeReference).stream()
                    .collect(Collectors.toMap(SkuHasStockVo::getSkuId, item -> item.getHasStock()));
        }catch (Exception e){
            log.error("库存服务查询异常：原因{}",e);
        }
//        封装每个sku的信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts = skus.stream().map(sku -> {
//1组装需要的数据
            SkuEsModel esModel = new SkuEsModel();
            BeanUtils.copyProperties(sku,esModel);
            esModel.setSkuPrice(sku.getPrice());
            esModel.setSkuImg(sku.getSkuDefaultImg());
//            设置库存信息
            if(finalStockMap == null){
                esModel.setHasStock(true);
            }else{
                esModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }
            //TODO 热度评分
            esModel.setHotScore(0l);
            //TODO 告诉品牌和分类的名字信息
            BrandEntity brand = brandService.getById(esModel.getBrandId());
            esModel.setBrandName(brand.getName());
            esModel.setBrandImg(brand.getLogo());

            CategoryEntity category = categoryService.getById(esModel.getCatalogId());
            esModel.setCatalogName(category.getName());
            //设置检索属性
            esModel.setAttrs(attrsList);


            return esModel;
        }).collect(Collectors.toList());

        //TODO 将数据发送给es 进行保存
        R r = searchFeignService.productStatusUp(upProducts);
        r.getCode() ;
        if(r.getCode() == 0){
//            远程调用成功
            //TODO 修改当前spu状态
            baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
        }else{
//            远程调用 失败
            //TODO 重复调用？接口幂等性
        }
    }

    @Override
    public SpuInfoEntity getSpuInfoBySkuId(Long skuId) {
        SkuInfoEntity byId = skuInfoService.getById(skuId);
        Long spuId = byId.getSpuId();
        SpuInfoEntity spuInfoEntity = getById(spuId);
        return spuInfoEntity;
    }


}